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IS42S16800E-7BL from ISSI

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IS42S16800E-7BL

Manufacturer: ISSI

16M x 8, 8M x16 128Mb SYNCHRONOUS DRAM

Partnumber Manufacturer Quantity Availability
IS42S16800E-7BL,IS42S16800E7BL ISSI 189 In Stock

Description and Introduction

16M x 8, 8M x16 128Mb SYNCHRONOUS DRAM The **IS42S16800E-7BL** is a **128Mb (8M x 16) Synchronous DRAM (SDRAM)** manufactured by **ISSI (Integrated Silicon Solution Inc.)**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Density:** 128Mb (8,388,608 words × 16 bits)  
- **Organization:** 8M × 16  
- **Voltage Supply:** 3.3V (±0.3V)  
- **Speed Grade:** -7BL (143MHz clock frequency, 7ns access time)  
- **Package:** 54-pin TSOP II (400mil width)  
- **Refresh Mode:** Auto-refresh and self-refresh  
- **Refresh Cycles:** 4,096 refresh cycles every 64ms  
- **CAS Latency (CL):** 2, 3 programmable  
- **Burst Length:** 1, 2, 4, 8, or full page  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  

### **Descriptions:**
- **Synchronous Operation:** Clock-synchronized for high-speed data transfer.  
- **Burst Mode:** Supports sequential and interleaved burst modes.  
- **Programmable Burst Length:** Configurable for efficient data access.  
- **Auto Precharge:** Optional feature for improved performance.  
- **Low Power Consumption:** Supports power-down and self-refresh modes.  

### **Features:**
- **Single 3.3V Power Supply**  
- **Fully Synchronous to Positive Clock Edge**  
- **Internal Pipelined Operation**  
- **Four Banks Operation (Bank Selection via BA0, BA1 pins)**  
- **Data Mask (DQM) for Byte Control**  
- **JEDEC Standard Compliant**  
- **RoHS Compliant**  

This SDRAM is commonly used in **networking, telecommunications, embedded systems, and computing applications** requiring high-speed memory access.  

(Note: Always refer to the official datasheet for detailed technical information.)

Application Scenarios & Design Considerations

16M x 8, 8M x16 128Mb SYNCHRONOUS DRAM

Alternative Part Number

  • MT48LC8M16A2P-7E --: Same 128Mb SDR SDRAM density in 8M x 16 organization with 54-pin TSOP II package and 7ns speed grade, a widely available pin-compatible drop-in alternative.
  • W9864G6JH-7 --: 128Mb SDR SDRAM organized as 8M x 16 in 54-pin TSOP II, 7ns rated, functionally equivalent to the IS42S16800E with similar timing and interface.
  • AS4C8M16SA-7TCN --: Direct 128Mb 8M x 16 SDR SDRAM replacement in 54-pin TSOP II at 7ns, specifically marketed as a cross-reference for ISSI IS42S16800 series parts.

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